Led night light has laser of hologram element(s)

ABSTRACT

An LED night light has a laser or hologram optics-element and is suitable for night time or dark area use over an extended time period. The night light may be a plug-in wall outlet night light or direct current (DC) operated night light having an image, message, or logo shown on the surface of the optics element. The LED night light parts that may include a housing member, optics-lens, openings, cut-outs, and/or plastic parts to create a preferred image. The night light can be designed with added features to enable adjustment of the angle, distance, position, or orientation of the LED(s) with respect to the optics-means to provide eye-catching light effects by varying the image size, dimensions, etc. The power source may be interchanged between an AC powered sealed-unit and a DC powered battery-pack.

This application is a divisional of U.S. patent application Ser. No.12/318,473, filed Dec. 30, 2008, and now allowed, which is herebyincorporated by reference.

BACKGROUND OF THE INVENTION

This invention is related to or has subject matter in common with U.S.patent application Ser. Nos. 12/292,153 (“LED night light has projectionor image feature”); 12/318,470 (“LED Projection Night Light”);12/(“Removable LED light device”); 12/073,889 (“LED track lightdevice”); 12/073,095 (“LED light with changeable position withPrefereable power source”); 12/007,076 (“LED light with changeablegeometric system”); 12/003,691 (“LED light with changeable geometricdimension features”); 12/003,809 (“LED light with changeable features”);11/806,711 (“Multiple LED light with adjustable angle features”);11/527,631 (“LED Night light with interchangeable display unit”);11/498,881 (“Poly Night light”); 11/255,981 (“Multiple light sourceNight Light”); 11/094,215 (“LED Night light with Liquid optics medium”);11/092,741 (“Night light with fiber optics”); 10/883,747 (“Fiber Opticlight kits for footwear”) 11/498,874 (“Area Illumination for LED nightlight”); 11/527,629 (“Time Piece with LED night light”); 11/527,628(“Multiple Function Night light with Air Freshener”); 11/806,284 (“LEDNight light with more than one optics mediums”); 11/806,285 (“LED NightLight with multiple function”); and 11/806,711 (“Multiple LEDs Lightwith adjustable angle function”); The current invention uses laser orhologram optics means in front of a light source to create splendidlight effects shown on the surface of the laser or hologram optics meansto provide the night light with eye-catching effects and offerillumination in a dark environment.

The laser or hologram optics means of the current invention may beproduced by an injection, stamping, embossing, or pressure rollingprocedure. The injection procedure may be the same as the one describedin the Inventor's U.S. Pat. No. 5,667,736, issued on Sep. 16, 1997. Thestamping procedure uses laser optics tooling to stamp a PET or otherplastic sheet to provide the plastic sheet with a laser or hologramfunction. The embossing and pressure rolling procedures put the laser orhologram optics tooling on a roller with a certain pressure to providethe plastic or any other desired material with the laser or hologramfunction, so can make the hologram can be made very cheap.

The current invention incorporates the above-described laser or hologramoptics means in a night light which may be a plug-in night light from anAC adaptor, a night light powered by batteries, or a night light poweredby an AC power source with a plug and wires supplying electricity from awall outlet for use as dark environment illumination to recognize theposition of other items. The night light may be installed and used overa long time period, for example more than a quarter year (three monthsis a minimum quality guarantee for night light production). This isdifferent than a laser or hologram toy, seasonal lighting, Christmaslight, or Halloween light device, which is only used for a few days bymost people. There is a big difference in the marketplace betweeneveryday light and seasonal lighting categories.

The current invention also uses different locations to apply the laseror hologram means to get different sizes of an image to fit into certainsurface dimensions and provide a more attractive light performance. Thisis not the case with seasonal lighting.

The current invention also provides an alternative way to allow peopleto adjust the light source position, orientation, or height with respectto laser or hologram optics means.

Still further, the current invention provides techniques to apply solvea light source(s) narrow viewing angle by using laser or hologram opticsmeans. The center line of an LED light beam will provide the biggestimage and, away from this viewing angle, the image will become smaller.This property can be used to make the light performance more artistic.

According to the current invention, the night light can be incorporatedin another plastic housing to make a finished product or a laser orhologram sheet can be used to form a tube, cone, box, case, or othergeometric shape without any other housing to provide a finished product(in which the light source has its own construction to meet the safetystandard).

The current invention may include a “sealed-unit” of the type disclosedin the Inventor' copending application Ser. No. 11/527,631, whichcontains all electric components including a prong, circuit, triggermeans, and/or an LED or LED connector to supply power from an AC powersource to turn on and turn off the LEDs. The “sealed-unit” also can bereplaced by a battery-pack which contains all electric componentsincluding batteries, a circuit, trigger means, and/or an LED or LEDconnectors to cause illumination of the night light according to apre-determined function, timing, duration, and/or effects. This providesthe night light with a changeable “power source,” from AC to DC or DC toAC.

Finally, the current invention also may involve a plastic sheet withlaser or hologram optics means applied on a surface and arranged toallow air to get in and out in order to achieve desired geometric shapewith a channel to allow the light means to be inserted into, within, oron a desired location to provide a balloon with attractive light effectsfor illumination for dark environment for kids.

BRIEF DESCRIPTION OF DRAWINGS

FIGS. 1, 5, and 5-1 show a first preferred embodiment of an LED nightlight with image projection on the optics means surface. This preferrednight light is a plug-in type or plug-wire type to connect with an wallelectric outlet. The night light of FIGS. 1 and 5-1 incorporate anoptics film or/and optics lens with a transparent or translucent housingas the optics means to create desired image on the optics means surface.The night light of this embodiment also has a “sealed-unit” for theelectric components including a prong, circuit, trigger means, and LEDor LED connector within the sealed unit to pass all strict safetystandards and achieve certification. The “sealed unit” can be replacedby a “battery pack” to change from an AC power operated night light to abattery operated DC power operated night light.

FIGS. 2 and 3 show a different viewing angle of the current invention'simage projection on a surface of the optics means of a preferredembodiment of a puck light or tap light with a variety of different ofcolors, sizes, shapes, and/or designs on its surface. It also can havesome art applied on a surface to improve the punk light when the LED isnot turned on.

FIGS. 4, 6, 7-1, and 7-10 illustrate the construction of an LED, laseror hologram optics means, and a viewing surface, as well as variationsin the relationship between the LED(s) light source and optics means toget different light performance, and methods to achieve an adjustablelight means.

FIGS. 8 to 13 illustrate an alternative arrangement for upper and/orside illumination by a plurality of LEDs and optics means.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The LED night light having a laser or hologram optics-means of thecurrent invention is different from a conventional toy, seasonallighting, Christmas lighting, or Halloween lighting, which is onlydesigned to be used for one or several days.

The current invention concerns night light applications with LED or LEDsas a light source to directly plug into an outlet device, so the circuitneeds to be specially designed to utilize AC 110V 60 Hz input power todrive the LED or LEDs.

The current invention may also, however, include a direct current (DC)operated night light in which the LED or LEDs are turned on by pushingor touching a housing-member. This is same as a conventional puck or taplight in the way the LED or LEDs are driven to turn on. The night lightof the invention also can be designed in a manner similar to aconventional touch light, such that the light source will turn onwhenever the housing-member has been touched by a person's skin. Allsuch touch lights have a housing-member pre-connected with inner circuitmeans to provide a turn on and turn off light source function. Thecurrent invention preferably uses this kind of push or touchhousing-member to activate the circuit to turn on and turn off the LEDlight source because such an LED night light has a higher value than oneoperated by a switch on the surface of the DC operated night light.

The current invention offers big improvements by adding optics-means toan AC or DC operated night light to increase the eye-catching lighteffects.

The LED night light of the current invention includes not only laser orhologram optics-means, but also additional parts which may selected fromthe group including a housing-member, optics-lens, art work slide,designer lens, shaped lens, plastic parts, transparent material pieces,translucent material pieces, openings, and/or cut-outs with precisionoptics calculation and optics design to provide an image, message, logo,characters, or sign that is visible on desired surface areas of theoptics-means.

The current invention also may use a “sealed-unit” such as the onedisclosed in copending application Ser. No. 11/527,631, which enclosesall electric components including a prong (1 b), circuit, trigger means,LED or LED connector to supply AC power source to turn on and turn offthe LEDs. Alternatively, the “sealed-unit” may be replaced by abattery-pack (1 o) which has all electric components within, includingbatteries (1 p), a circuit (1 q), trigger means, and/or LED 1 r) or LEDconnectors within a case (1 s) to cause illumination of the night lightillumination according to a pre-determined function, timing, duration,and/or effects. This interchangeable battery-pack and sealed-unit of thed night light changing of the “power source” from AC to DC and DC to AC.

The current invention also may include a geometric design for the wholenight light, which is not limited to the preferred embodiments. Thereare many possible alternative constructions for the night light, forexample constructions in which the night light or light source may tilt,swivel, rotate, change position, have an adjustable orientation, and/orinclude a plurality of LEDs with different distances to the optics-meansfeatures. It will be appreciated that all of these alternative methods,arrangements, or added features will still fall within the currentinvention scope.

As shown in FIG. 1, a preferred LED night light has laser or hologramoptics-means to create an eye-catching light image and at least one LED(1 g) as a light source to supply visible light beams. At least one ofthe optics-means (1 h) is incorporated with the LED (1 g) and additionalparts including a housing-member (1 a,1 b,1 c,1 d), optics-lens (1 n),plastic film, art design slide, openings, cut-outs, a transparentmaterial piece (1 n), a translucent material piece, and/or grating means(1 h) to create a desired image (1 j) (1 i), message, data, logo, timeon optics means surface (1 h). At least one power source (1 b), circuitmeans (not shown), and trigger means (1 c) are arranged to work with theLED or LEDs (1 g) to obtain a desired light function, timing, colors,brightness, and/or illumination for use at night or in a darkenvironment over a long time period.

The night light of this embodiment also has the following features:

The LED night light device creates splendid images (1 i)(1 j) on theoptics-means (1 h) surface when the LED is incorporated with a laserprocessed technical film or with an injection piece, such as laserprocessed film (1 h) positioned in front of the LED or LEDs (1 g) to.

The LED night light may be a plug-in wall outlet night light (FIGS. 1,5, and 5-1) or direct current operated LED night light (FIGS. 2, 3,FIGS. 7-1 to 7-10, and FIGS. 15 to 20) which has an image shown on thefilm (1 h) or injection piece surface (FIG. 7-8).

As shown in FIG. 1, a preferred plug-in night light has a base (1 a)with prong (1 b) to connect with a power source having a sensor orswitch (1 c) to turn on and turn off LEDs (1 g) when the environmentbecomes dark, either automatically or by manual operation. The desirednumber of LEDs (1 g) are connected by a conductive means that mayinclude wires and/or a printed circuit board (1 e) to cause the LEDs toemit the light beam to the surrounding laser or hologram-optics-means (1h) in the form of a laser processed film or laser injection piece (1 h)which will cause the incoming LED light beam to form a desired lightimage such as a star, dots, circle, dot matrix, flower or any otherconfiguration available from the marketplace or created from a laserlab. The preferred image in this embodiment is a star (1 i) or dots (1j) or any combination thereof. The conductive means (1 e) can includeisolated copper wires and/or a flexible printed circuit board (FPC) toinstall the LEDs at a desired position. The tube or optics lens (1 n)can include a transparent material piece with a different shape such asa cone (FIG. 5), tube, cube (FIG. 5-1) or any shape with preferredoptics-properties to enable the inner LEDs to create a laser image (1 i)(1 j) with eye-catching effects.

The current invention may also use the “sealed-unit” described invarious copending applications, which has all electric componentsincluding a prong, circuit, trigger means, and/or LED or LED connectorsealed within to supply power from an AC power source and turn on andoff the LEDs. The “sealed-unit” also can be replaced by a battery-pack(1 o) as described above, or other circuitry for causing the night lightto illuminated according to pre-determined functions, timing, duration,and/or effects.

The LED light with base (1 a) has an empty inner space to fit the abovediscussed circuit-means, sensor-means, switch-means, timer-means,IC-means, prong-means etc.

Suitable “sealed-units” are described in the above-cited copending orissued patent application Ser. Nos. (1) 11/527,631 (“LED Night lightwith interchangeable display unit”); (2) 11/498,881 (“Poly Nightlight”); (3) 11/255,981 (“Multiple light source Night Light”); And (4)11/094,215 (“LED Night light with Liquid optics medium”).

The “sealed-unit” has its own power, LED, circuit-means, and attachmentmeans so that it can fit into any LED light housing as long as asuitable uniform compartment (1 t is provided therein. The “AC poweredsealed unit” may utilize a 110 Volt, 60 Hz or other high voltageconnection arranged so that the sealed unit will meet all safetystandards to ensure that there will be no hazard, electric short, orpotential damage during multiple laboratory tests and procedures toachieve safety certification.

The uniform compartment (1 t) in the LED light housing has aconstruction and dimensions that enable the “sealed-unit” to be easilydesigned to fit into the compartment. The current invention also providea “DC battery-pack” (1 o) which has its own outside dimensions similarto those of the “sealed unit” so as to fit into the “uniformcompartment” too. The “DC powered battery-pack” can replace the “ACpowered sealed-unit” at any time because both have their own power, LED,circuit-means, and attachment means to fit the same LED light housing aslong as there is a uniform compartment.

Preferably, the LED light of this embodiment can change its power sourcefrom AC to DC or DC to AC. This is a further improvement with respect tothe “AC power sealed-unit” described in the above-list copendingapplications, not only to save a lot of tooling for different shape LEDlights but also because it eliminates the need for safety testing ofeach different design, and therefore saves on expensive laboratory time.Furthermore, the interchangeable power source also can save a lot oftooling cost, time, and labor to provide a good LED light having apinhole-imaging function (or LED lighting fixture, laser LED lightdevice, etc. corresponding to devices described in various copendingapplication) with a same nice shape but with different power sources tomeet the requirements of different locations where people stay. This isone of the big features of current invention. Not only can all differentshapes of LED night light, be powered by both a DC battery and AC, butso can the traditional puck light as long as people pay for extra partsto hang the traditional puck light to an AC outlet.

The night light of this embodiment may use a simple plastic piece withlaser or hologram optics-means applied on the skin of a cone asillustrated in FIG. 5: As shown in FIG. 5, the inner LED (16-3) or LEDs(16-2′) (16-3″) can include a variety of alternative types such as anLED (16-3) which has an LED chip fixed on the two isolated copper wires(16-2) and sealed by epoxy. The LED type can also be an LED chip (16-3)or LED dice (16-3′). In the example of FIG. 5, the laser or hologramoptics-means are applied on a plastic sheet and several pre-cut plasticsheets are joined by hot-sealing to form a balloon (16-6) that is filledwith air to become a cone shape. The interior has one channel (16-5)that allows an LED light bar (16-5′) to placed therein to establish theLEDs location from top to bottom. The LED light bar (16-5′) is poweredby a prong (16-8) and wire to enable the cone shape laser or hologramoptics-means balloon to be positioned away from the wall outlet to offera very special night light for night time or dark environmentillumination. The light bar (16-5′) also can be powered by a directcurrent (DC) box which has batteries inside as well as trigger means,switch means, and sensor means to turn on and off the night light.

FIG. 5-1 shows a simpler construction. The plug-in Night light has Laseror hologram optics-means (16 a) which has a power source input from theprong (16 a-2) and passes through the inner circuit (not shown) andconductive means (not shown) to the inner LED or LEDs to create an image(16 a-6) that can be seen from any side of the optics-means surface.

As shown in FIG. 6, the LEDs can be arranged inside the cylinder shapedlaser optics-means (16 d) (whether a film or injected piece) with adesired arrangement of different LED types (SMT LED 16 g, Standard LED16 h, Dice LED 16 i) on a PCB (16 j), or inside a hexagonal laseroptics-means (16 e), or rectangular laser optics-means (161).

FIGS. 2 and 3 a variety of laser images on a DC powered night light,also known as a puck light or tap light. As shown in FIGS. 2 and 3, astar's laser image may be seen from the DC night light top cover. Thebig star (2 a) is much bigger than the small star (2 b) because theinner LED for the bigger star is much farther away from theoptics-means, so a bigger image will be created. The image of the smallstar's (2 b) is created by putting the inner LED a shorter distance fromthe optics-means. According to the same principle, the super big star (2d) has the longest distance to the optics-means and so causes a superbig image to be seen. These different distance of the said LED insidethe puck or tap light will cause images having different sizes,dimensions, and/or specifications to be created for a lot of goodapplications such as a large size puck light (2) having several LEDsinside with different distances to the optics-means so as to create abig star (2 a) in the center and several surrounded small stars, so thenight light will appear very well designed with nice art work. It alsocan save a lot of cost by putting the LED far away from the optics-meansso as to get a super big star image such as (2 d) that fits into asmaller size night light. There might be only one LED inside, but thelight will look very valuable because of the super big star inside.FIGS. 2 and 3 teach how to apply the different distances between thesaid LEDs and optics-means to create some valuable and splendid yeteconomical DC powered night lights to improve the conventional puck ortap light.

FIG. 4 is a side view of another preferred DC powered night light havinga laser or hologram optic-means. The night light (4) has a cover (4-1)which may a transparent plastic cover or the same type of coverdescribed in the inventor's U.S. Pat. No. 5,667,736 which is a laser orhologram optics-means made by an injection process. When using atransparent plastic for cover (4-1), the inner laser or hologramoptics-means can be in a plastic sheet form and positioned in apreferred position (4-a) just underneath the cover (4-1) or can put atthe location (4 b). The only difference is the distance from the lightsource to the optics means. As discussed above with respect to FIGS. 2and 3, a bigger distance between LEDs and optics-means results in a muchbigger image. The inner LEDs (4 d) are positioned on a PCB base 4 iwhich is very close to the optics means (4 a)(4 b) so the resultinglaser image will be very small in comparison with that of the LEDs (4 e)on the night light base. The cover (4-1) has an extended-part which canextend through the switch (4 f) tip to push the switch (4 f) from a longposition (off) to a short position (on). After the switch is pushed tothe short position, the cover will return to the original positionbecause the cover edge also has multiple springs to offer elasticfunction to push the cover back to the position illustrated in FIG. 7-2by spring (72 p), in FIG. 19 by springs (19 g) (19 g′) (19 g″), or inFIG. 20 by springs (20 g) (20 g′) (20 g″). These springs will cause thecover to remain in a top position. The cover is one of thehousing-members which prevent the consumer from seeing the uglyrectangular switch inside. This arrangement of the housing-member andinner circuit means to allow people to turn on and turn off the LEDs bysimply pushing or touching the housing member is yet anotheradvantageous feature of the Preferred LED night light having laser orhologram optics-means. An alternative to turn on and turn off the LEDscan be to make the cover and base of the night light conductive so that,when people touch the housing-member, LEDs can turn on and off. Somemodels can even can provide a dimmer function without departing thescope of the current invention.

FIG. 7-1 shows a direct current operated LED night light (71) with laseror hologram optics-means, in which the distance between the LEDs and theoptics means is adjustable. At least one LED (71 i) serves as a lightsource to supply visible light beams. At least one of the optics-means(71 c) (71 d) is combined with the LED (71 i) or LEDs (71 h) and relatedparts selected from an optics-lens (71 b), art work film (not shown),openings, cut-outs, transparent material piece, and translucent materialpiece to create a desired image (not shown), message, data, or logo onthe optics means surface (71 d). At least one of a power source (notshown), circuit means (71 h), and trigger means (71 q) is arranged towork with the LED (71 i) or LEDs (71 h) to get a desired light function,timing, colors, brightness, illumination, and/or light effects.Preferably the LED night light device (71) of this embodiment is adirect current (DC) power source night light which can be turned on whenthe housing-member (71 b) been touched or pushed. The DC power sourcesupplies direct current to the LED or LEDs and may be in the form of anAC adaptor with a jack, solar power source, wind power source, chemicalpower source, generator power source, or any DC power source availablefrom the market.

FIG. 7-1 shows a laser processed film or injected piece (71 d) in theform of a circle shape (1 d) arranged to fit into the top housing (71 a)at the position (71 x). The laser processed film or injected piece (71d) is situated a distance D from the light source (71 p). The distance Dis very important when making the laser processed film or injected pieceso as to enable a desired image on the laser processed film or injectedpiece to be seen. As explained above in connection with FIGS. 2-4, thedistance D can determine the number of images, size of the images, andconfiguration of the images.

As shown in FIG. 7-1, the LED (71 i) is installed on a printed circuitboard (71 h) on the base (71 f). The base (71 f) has a height that canbe adjusted over a distance (dd1). The adjust-means of this preferredembodiment includes a screw-nut (71 m) with center hole (71 k) toreceive screw-bolt (71 j) and allow adjustment of the height of the LEDwith respect to the base (71 f). The LED (71 i) and others LEDs can emitlight to the laser processed film (71 d). This embodiment can provide avery pretty color image on the walls (71 c).

As shown in FIG. 7-2, the laser processed film or injected piece (72 c)are positioned in a horizontal position (72 d) on top housing (72 b) sothat the image will be seen on the top area of the DC powered nightlight (72). The adjustable means of this preferred embodiment uses thedetents (72 j) and receiving hole (72 k) to hold position at a certainheight. The height of the LED or LEDs (72 i) on the base (72 h) cantherefore be adjusted to change the distance (D) between the laserprocessed film (72 c) and light source (72 h) to cause the image to bechanged. The adjustable means can have a range (dd2) over which theheight of the LED or LEDs can be adjusted.

FIG. 7-3 shows a wall (75 a) located on the lower housing (75 b). Theadjustable means (75 d) (75 e) has a height-adjustable range (dd3) overwhich the height of the LEDs relative to the PCB (75 c) can be changed.

FIG. 7-4 shows one preferred arrangement for enabling the laserprocessed film (76 b) to fit into the dome shape top housing (76 a). Theflat film cannot fit into the ball shape dome, so multiple cuts (76 b)(76 c) (76 d) (76 e) (76 f) need to be made in the film. This is aneconomical arrangement to make a low-end product. An up-graded modelwith an injected piece may utilize the grating or hologram techniquesdisclosed in the inventor's U.S. Pat. No. 5,667,736.

FIGS. 7-5 and 7-11 show the LED's or LEDs' position on a lower housingof the preferred embodiment of FIGS. 7-1 to 7-4. The PCB (72 h) can beany size as long as it is smaller than the base (72 k) and/or a lowerhousing (72 g), either of which may include terminals (72 j) and/orspring terminals (72 j′) for connection to a power source. The LED orLEDs (72 i) can be arranged on the center area or edge of the PCB (72 h)to face upward or outward as required to determine the distance (D)between the laser processed film or injected piece and light source soas to enable different sizes of the image to be seen by a viewer. Someapplications need LEDs on an edge of the bases (72 k), which will havetoo much cost for a PCB so may be preferred to use wires to makeelectric connection for each LED to follow the contour of a big rounddisc edge.

As shown in FIG. 7-6, The direct current operated LED night light ofthis embodiment also has a laser or hologram optics-means. At least oneLED (73 i) serves as a light source to supply visible light beams. Atleast one of the optics-means (73 a) is incorporated with the LED and/orparts selected from one or more of an optics-lens, art design film,openings (star) (planet), cut-outs (moon), a transparent material piece,paint, silkscreen, and/or translucent material piece (73 a) to createthe desired image or message on the optics means surface. At least oneof the power source (73 m) (73 m′) (73 m″) (73 m″), circuit means (73h), and trigger means (73 o) are arranged to work with the LED or LEDs(73 i) to provide a desired light function, timing, colors, brightness,illumination, and/or light effects. The LED night light device (73)having a laser or hologram optics-mean is a direct current power sourcenight light which can be turned on when the housing-member (73 a) hasbeen touched or pushed. The direct current power source (73 m) (73 m′)(73 m″) (73 m″″) that supplies power to the LED or LEDs may be an ACadaptor with jack, solar power source, wind power source, chemical powersource, generator power source, or any direct current power sourceavailable from the market.

As shown in FIG. 7-6, the DC operated LED night light with optics-means(73) has a top housing (73 a) having a plurality of art designs (stars)(moon) (planet) or paintings on the transparent material piece (73 a) toallow the LED light to have a good appearance even when no LED light isturned on and spread out to the desired surface. The top housing (73 a)has a foldable skirt (73 d) which can used to adjust the height of thetop housing to move an optics-lens (73 a) to a higher or lower locationto change the distance (D) between the optics-lens (73 a) and lightsource (73 i). Another adjustable means on the LED's or LEDs' base (73h) can be used to adjust the height of the LED(s) adjustable from theLED base. The adjustable skirt (73 d) or adjustable means of the LEDbase are by way of example only. It will be appreciated that anyconstruction having a similar or equal function may still fall withinthe current invention scope in order to adjust the distance between theoptics-means and light source to provide a clear image on the desiredsurface to fit all kinds of rooms or spaces.

As shown in FIG. 7-7, another preferred DC operated night light has atop optics-lens (74 b) with a plurality of art designs (stars) (moon)(planet) or paintings on a transparent material piece (73 a) to allowthe LED light to have a good appearance when no LED light is turned onand spread out to the desired surface. The trigger means (74 c) alwayskeep the same position against the top optics-lens (74 b) and will betriggered when the top optics-lens been touched or pushed to turn theLED on and turn off. In order to get a clear image on the desiredsurface, an adjustable means (not shown) is designed on the LEDs' baseto enable the LEDs (74 f) to move up or down to make the image clear fordifferent rooms or space.

FIGS. 7-6 and 7-7 show a preferred arrangement of batteries (73 m) (73m′) (73 m″) (73 m″″) in a spiral space that enables a plurality of LEDs(73K) (73 j) (74 h) (74 h′) (74 h″) to be installed as close as possibleto the center to increase the distance between the light source and theoptics means when using an optics-means such as a laser processed filmor injected piece on a wall location. The larger distance will createmore exciting image effects.

As shown in FIG. 7-6, LEDs (73 j) (73 k) are very close to the centerposition so that their light beams will spread out to the wall areas tohit the optics-means, including a laser processed film or injectedpiece, to thereby provide excellent image effects on the desiredsurface. If the LEDs are too close to the wall area, then the effectswill be limited and the laser tooling work will become very difficult.Normally the 2-10 cm+/−50% distance between laser process film orinjected piece and the light source is very good and a variety of laserprocessed films or injected pieces are available from marketplace foruse therewith, so there is not need for a big investment in lasertooling as would be required for applications with too short a distance.

FIGS. 7-8, 7-9, 7-10 shows three preferred embodiments having differentdistances (d4) (d5) (d6) between the top optics-means (77 a) 978 a) (79a) and light source (77 f) (78 f) (79 c). The top optics-means may inthe form of a laser processed film or injected piece. These embodimentsalso have adjustable means (77 h) (79 e) with height adjustable ranges(dd4) (dd6) so as to enable a clear and exciting image to be shown onthe desired surfaces. All of the preferred embodiments use DC frombatteries and/or supplied by a variety of input power sources asdiscussed above. As shown in FIGS. 7-8 and 7-9, the DC poweredbattery-pack can be replaced by an AC powered sealed-unit at any timebecause the LED light has been pre-designed to fit in a uniformcompartment, as will be understood from the drawings.

FIGS. 8, 10, and 12 shows a preferred DC operated night light fordisplaying images (18 b) (18 c) on a desired surface through the wall(15 b) with a dollar sign formed by a laser processed film or injectedpiece. The lower housing (19 a) has a battery compartment (19 b) andswitch (19 c) with assembly poles (19 f) (10 f′) (19 f″) (19 f″) andspring members (19 g) (19 g′) (19″) (19′″) to bias the top optics-lens(15 c) to a top position and enable the top optics-lens to be pushed toturn on and off an LED. The LED or LEDs (19 h 2) are positioned on a PCB(19 e) and connected with a power source by conductive wires (19 d) tosupply the electric signals that turn on and off the LED or LEDsaccording to a pre-determined function, brightness, color, effects,and/or performance. A plurality of LEDs also can be installed along thebattery compartment edge, but this is not the best arrangement. The bestarrangement should be similar to that shown in FIGS. 7-5, 7-6, 7-7 toprovide more distance between the light source and optics-means asdiscussed above. The plurality of LEDs along the battery compartmentcould then create an exciting image on a desired surface.

FIGS. 9, 11, 13 show a similar treatment to that of FIGS. 15, 18, and19. The major difference is that all of the plurality of LEDs emit lightinwardly to the circle reflector (20 j) to direct a lot of light spotsat the reflector (20 j), which then hit the optics-means (17 a)surrounding the wall of the night light. The addition of extrareflectors on the night light is helpful to increase the number of lightspots.

The current invention may incorporate concepts, drawings, and designsdisclosed in copending or patented applications by the same inventor. Itwill be appreciated that arrangements including all of these concepts,ideas, and knowledge may still fall within the scope of the invention,including equivalent or functionally replaceable and alternativearrangements.

While the above-discussed and mentioned preferred embodiments show thescope of the current invention, it is to be appreciated that any designhaving alternative or equivalent functions, construction, modification,or up-grade may still fall within the scope of the invention, which isnot limited to all above discussion and details described therein. Amongthe elements that may be varied are the power source, conductive means,geometric shape of the LED-units,-connection means, circuit means,sensor means, switch means, LED elements, attachment means,fixing-means, tightening means, and resilient conductive means, all ofwhich may have alternative arrangements, design, and construction.

I claim:
 1. A light emitting diode (LED) light device with aninterchangeable power source, comprising: at least one housing memberhaving a uniform compartment arranged to interchangeably receivedifferent power source units; said different power source units that thecompartment is arranged to interchangeably receive including: at leastone alternating current (AC) powered LED sealed unit that by itselfmeets all safety standards and requirements for certification by asafety standard agency, and that fits within said compartment; and atleast one direct current (DC) powered LED battery pack that fits withinsaid compartment, wherein the AC powered sealed unit and the DC poweredbattery pack include: at least one LED that serves as a light source forvisible light beams; and parts selected from the group consisting ofcircuit means, trigger means, sensor means, timer means, IC means, prongmeans, battery recharge means, an AC adaptor, DC storage means, batterymeans, switch means, solar means, generator means, chemical energymeans, PCB means, conductive means, attachment means, clip means, twisttight means, screw means, quick connect means, and rechargeable DCstorage means, wherein the at least one LED is triggered when anelectric signal output by the sealed unit or battery pack is applied toterminals of the at least one LED and thereby causes the at least oneLED to emit light, and wherein the AC powered LED sealed unit and DCpowered LED battery pack are arranged to be interchangeably fit into theuniform compartment of the LED light device to cause the LED lightdevice to become a finished product with properties determined byproperties of the sealed unit or battery pack, said properties includinggeometric shape, purpose, function, application, features, andpredetermined lighting effects including timing, duration, brightness,or colors.